LFCN-1200+

Overview

The LFCN-1200+ is a low-pass ceramic filter manufactured by Mini-Circuits, designed for surface-mount applications. It features a cutoff frequency of 1.2 GHz and operates with a nominal impedance of 50 Ohms. The device exhibits a typical insertion loss of 1 dB. It is housed in a compact 4-SMD, no-lead package with dimensions of 3.20 mm in length, 1.60 mm in width, and a maximum height of 0.94 mm. This component belongs to the LFCN series of LTCC filters.

Feature Summary

• Utilizes Low-Temperature Co-fired Ceramic (LTCC) technology for robust construction
• Provides effective signal filtering with a defined low-pass characteristic up to 1.2 GHz
• Designed for direct surface-mount integration into printed circuit boards

Applications

• RF front-end filtering in communication systems
• Signal conditioning in S-band upconverter assemblies
• Harmonic suppression in microwave circuits

Procurement Notes

Verify the specific suffix requirements against official datasheets before ordering. Confirm that the standard version meets isolation needs; if DC pass-through is required, the 'D' suffix variant must be selected instead. Ensure compatibility with the specified 4-SMD footprint during PCB layout. Check RoHS compliance status as per current manufacturer documentation.

Selection Notes

Select this component when a 1.2 GHz cutoff frequency and 50 Ohm impedance are required for low-pass filtering. Consider the physical dimensions of the 4-SMD package for space-constrained designs. Evaluate the need for DC continuity; if present, choose the alternative suffix version. Verify insertion loss specifications against system budget requirements.

Part Context

This part belongs to the LFCN series of LTCC low-pass filters from Mini-Circuits. These components are engineered for high performance in RF and microwave applications. The series offers various cutoff frequencies while maintaining consistent packaging styles. The LFCN-1200+ specifically targets applications requiring filtering above 1.2 GHz.

Replacement Considerations

For applications requiring DC pass-through capability, the LFCN-1200-D+ variant serves as a functional substitute within the same series. Both parts share identical physical dimensions and basic filtering characteristics but differ in DC connectivity.